For thousands of years, sourdough starter has been used to healthily and naturally leaven bread. Containing naturally occurring yeast and friendly Lactobacillus bacteria, sourdough starter also adds its own unique flavor profile to baked goods. "Hello Eric, I just made my first loaf of no-knead sourdough, and you are right, your sourdough starter is very vigorous! I had a fantastic oven spring! I have a rye bread rising as we speak. Thanks again." Marty, Berkley, Michigan "Just a note to say a massive THANK YOU for the wonderful sourdough starter. With it, I made near-perfect SD loaves." "I have struggled for a year to come up with a good from-scratch starter and had endless problems. Yours worked like a dream, the texture of the dough was fabulous, and the loaves delicious. Why did I wait so long? Thanks again." Margaret McGurk